ASTM_B_176_-_17.pdf

Designation:B17617Standard Specification forCopper-Alloy Die Castings1This standard is issued under the fixed designation B176;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification establishes the requirements forcopper-alloy die castings.The alloys specified are CopperAlloy UNS Nos.C85470,C85700,C85800,C86500,C87800,C99700,and C99750.21.2 UnitsThe values stated in inch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3B824 Specification for General Requirements for CopperAlloy CastingsB846 Terminology for Copper and Copper AlloysE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE23 Test Methods for Notched Bar Impact Testing of Me-tallic MaterialsE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 ADCI/NADCA Standards:4“E”Series Product Standards2.3 Federal Standard:5Fed.Std.No.123 Marking for Shipment(Civil Agencies)2.4 Military Standards:5MIL-STD-129 Marking for Shipment and Storage(MilitaryAgencies)MIL-P-116 Methods of Preservation3.General Requirements3.1 The following sections of Specification B824 constitutea part of this specification.3.1.1 Terminology(Section 3),3.1.2 Number of Tests and Retests(Section 11)(Note tousers:Paragraph 10.3 of Specification B824 applies only whenmechanical requirements are specified in the purchase order.),3.1.3 Test Methods(Section 13),3.1.4 Significance of Numerical Limits(Section 14),3.1.5 Inspection(Section 15),3.1.6 Rejection and Rehearing(Section 16),3.1.7 Certification(Section 17),3.1.8 Test Report(Section 18),3.1.9 Product Marking(Section 19),and3.1.10 Supplementary Requirements.3.2 In addition,when a section with a title identical to thatreferenced in 3.1,above,appears in this specification,itcontains additional requirements which supplement those ap-pearing in Specification B824.4.Terminology4.1 For general terms related to copper and copper alloys,refer to Terminology B846.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for Remelting.Current edition approved April 1,2017.Published May 2017.Originallyapproved in 1942.Last previous edition approved in 2014 as B176-14.DOI:10.1520/B0176-17.2The UNS system for copper and copper alloys(see Practice E527)is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix“C”and a suffix“00.”The suffix can be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Available from North American Die Casting Association(NADCA),3250Arlington Heights Rd.,Suite 101,Arlington Heights,IL 60004,http:/www.diecasting.org.5Available from DLA Document Services,Building 4/D,700 Robbins Avenue,Philadelphia,PA 19111-5094,http:/quicksearch.dla.mil/*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.Ordering Information5.1 Include the following information when placing ordersfor die castings under this specification as applicable:5.1.1 Specification title,number,and year of issue,5.1.2 Part name and number,5.1.3 Copper Alloy UNS Number,5.1.4 Quantity and delivery schedule,as required,5.1.5 Engineering drawing of die casting,when required,giving all necessary dimensions and tolerances and showinglatest revisions and allowances for machining,if any.Locationof ejector pin marks or parti